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20010222212151 = 37578811194281
BaseRepresentation
bin1001000110010111111100…
…01011111101010000110111
32121211221212210100200112210
410203023332023331100313
510110321413341242101
6110320322535344503
74133455650262443
oct443137613752067
977757783320483
1020010222212151
116415318856356
1222b2146b22133
13b21c57034792
144d26ddb05823
1524a7a24d97d6
hex1232fe2fd437

20010222212151 has 8 divisors (see below), whose sum is σ = 26715541063024. Its totient is φ = 13322525751360.

The previous prime is 20010222212111. The next prime is 20010222212153. The reversal of 20010222212151 is 15121222201002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20010222212151 - 217 = 20010222081079 is a prime.

It is a super-2 number, since 2×200102222121512 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010222212153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4405594870 + ... + 4405599411.

It is an arithmetic number, because the mean of its divisors is an integer number (3339442632878).

Almost surely, 220010222212151 is an apocalyptic number.

20010222212151 is a deficient number, since it is larger than the sum of its proper divisors (6705318850873).

20010222212151 is an equidigital number, since it uses as much as digits as its factorization.

20010222212151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8811195041.

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 20010222212151 its reverse (15121222201002), we get a palindrome (35131444413153).

The spelling of 20010222212151 in words is "twenty trillion, ten billion, two hundred twenty-two million, two hundred twelve thousand, one hundred fifty-one".

Divisors: 1 3 757 2271 8811194281 26433582843 6670074070717 20010222212151